DCM Time Windows were audiophile speakers that came out in the late 1970s and were favorably reviewed in the underground audio press. They became a cult favorite, and were popular among knowledgeable audiophiles throughout the 1980s. A friend in Montana had a pair for awhile, and they sounded fantastic, especially on female vocals, so I snapped up a pair while I was still in school. They became my "reference" speakers, and I still have a pair after all these years.
Of all of the speakers I now own (Dynaco A-25s, KLH 6s, Marantz Imperial 6s, Acoustic Research Ar-3as, ADS L-400s, etc.), DCM Time Windows remain my favorites, especially with solid state amplification. Their inherent smoothness means that they reduce the hardness that some people hear with solid state amplifiers, and they sound good on almost all kinds of music. Time Windows are really distinctive in their appearance. The are 36 inch columns encased in black cloth. The tops and bottoms are veneered in walnut, and the fronts of the speakers are prism-shaped, while the backs are rounded. Speaker wire attachment is via banana plugs only. Each front surface contains a 6 1/2" woofer and a small dome tweeter, as well as a smallish port.
The sound is room-filling and slightly mellow, meaning you can listen to them for long periods of time without getting fatigued. They sound great with jazz, classical, bluegrass, and even rock 'n roll. Right now, my favorite speakers with tube amplification are my Marantz Imperial 6s. But when I go back to my solid state Dynaco Stereo 120 or conrad-johnson MF-80, the Time Windows are my favorites. Cost for a nice pair on Craigslist or eBay is only about $250/pair (they cost about $800/pair in 1984), so they're a good deal if you're looking for bargain audiophile speakers.